Door-latch



. A. McCULLOCH.

DOOR LATCH.

APPLICATION FILED AUG-9| 1920 Patnted Nov. 1, 1921..

IHVEHTDR.

ATLTID'RFIEY.

of the door near its outer side.

Umrsn STATESPATENT OFFICE.

ALEXANDER 'MCCULLOCH, OF GOVAN, SASKATCHEWAN, CANADA.

DOOR-LATCH.

To all whom it may concern:

"Be it known that I, ALEXANDER MOCUL- Loon, a citizen of the Dominion ofCanada, residing at Govan, in the county ofHumboldt and Province ofSaskatchewan, Canada,'have invented certain new and useful Improvementsin Door-Latohes, of which the following is a specification.

This invention relates to improvements in looking doors and moreparticularly in regard to locking garage doors, although theconstruction may be used for other doors besides garage doors. V

The object of my invention is to provide a locking means whereby thetop, the bottom, andthe center of the door will be locked.

A further object is to provide a releasing means controlled by onehandle. With these andother objects in view, the invention consists'i-nthe construction, combination and arrangement of parts as will behereinafter fully described, illustrated in the accompanying drawings,and pointed out in the claim hereunto appended.

Figure '1 is a sectional view of the door showing my improved lockingmeans in position.

Fig. 2 illustrates a detail view of the looking means for the top of thedoor.

Fig. 3 illustrates a detail view of the look- I ing means for the bottomof the door.

Fig. 4 illustrates a detail view of the looking means for the center ofthe door.

Fig. 5 illustrates a perspective view of the operating member.

Referring to the drawings like numerals designate like parts in thevarious drawings.

6 indicates a doorframe of the usual construction having an opening 7cut vertically Positioned in this opening is an upper arm 8 and a lowerarm 9, made preferably of strip metal or rods having a transverseopening at either ends. The opening 7 is enlarged slightly at the upperend and considerably at the lower end to receive locking means in theseens larged ends.

The locking devices at the upper end of the door is provided with a key10 having outwardly extending lugs 11. A spring 12 is positioned on theshank of said key and a washer 14 is slidably positioned on said springnear said shank the end of said shank is then flattened so as to keepthe said washer 14: on the shank and further to pro Specification ofLetters Patent.

Application filed August 9, 1920. Serial' No. 402,110.

vide an opening 15 which is suitably connected to the upper end of thearm 8. The opposlte end of the key 10 extends outwardly past the plate62 and is adapted to engage in any suitable opening in the door facing.This end may be beveled at one side as illustrated in Fig. 2. The washer14 is seated in the top enlarged portion of the opening 7 so that whenthe arm 8 is pulled downwardly the key will be carried downwardly alsotensioning the spring 12 against the washer 14, so as to cause thereaction of the key into'locking means.

Referring to the locking means at the lower end of the door I provide acasing 16 in which is slidably positioned a key 17 having outwardlyextending flange 18 a coil spring 19 is fitted on said key between saidflange 18 and said casing so as to tension said key in direction ofarrow Fig. 3.

20 is a'lever pivotally connected in a casing as at 21, 'itsinner endbeing positioned under the flange .18 while its outer end is suitablyconnected with the lower end of the arm 9. When the arm 9 is presseddownwardly the inner end of the lever 20 is pressed upwardly drawing theextended end 22 into the casing, this extended end 22 fits into asuitable opening in the floor when in locked position.

23 is a casing suitably mortised near the center of the door frame andbeing provided with oppositely positioned openings 24 and 25. Positionedin these openings is a connecting bar 26 suitably connected at its upperend to the lower end of the arm 8 and at its lower end to theupper endof the arm 9. This connecting bar is provided with inwardly extendinglugs 27 the purpose of which will be hereinafter mentioned- The casing23 is further provided with openings 28 and 29 in the opposite sides tothe openings 24 and 25.

29 is a key positioned in the openings 28 and 29 and tensioned in thedirection of the arrow by means of a coil spring 30 positioned on theinner end of the key 29 pressingagainst the casing 23. The outer end 31of the key 29 is normally positioned for locking in a door facing.

The casing is further provided on'its side with oppositely positionedopenings into which the ends 32 of the operating member 33 are suitablyjournaled.

34 is a handle in the outer side of the casing 23 and suitably connectedthrough the operating member 33 is a fixed position so that when thehandle 24: is turned it will turn the operating member 33. The operatingmember is cylindrical in shape and is provided with a lug 36 extendingradially therefrom. The outer end of this lug is rpositioned between thelugs 27. The operating member is further provided witha radiallydirected lug 37 which is normally positioned in front of the lug 35.When the handle 34 is turned the operating member 33, with itsrespective lugs 37 and 36, will press the key 29 into the casing and atthe same time will operate the arms 8 and 9 so that they will pull therespective keys 10 and 22 from locked engagement.

From the foregoing it is thought that the construction of my inventionwill be clearly understood and, therefore, a more extended explanationhasbeen omitted.

What I claim as new is:

In combination with adoor, a vertical opening formed in said door, anupper and lower arm positioned in said opening, a key in the upper endof said opening, said key having its inner end" attached to the upperend of said upper arm, a means for tensioning the other end of said keyoutwardly from said door, a key positioned in the lower end of saidopening, a means for tensioning one end of said last mentioned keyoutwardly from said door, a means conconnected to the lower end ofsaidupper arm, said connecting bar having its lower end connected to theupper end of said lower arm, lugs extended inwardly from said conmeetingbar, a key reciprocatively mounted in said casing to operate in theopposite direction to said connecting bar, a tension for positioning oneend of last said key to extend out past said casing, a lug formed on theupper side of last said key, a cylindrical operating member journaled insaid casing, lugs radially positionedon said operating member, one ofsaid lugs being positioned between the first mentioned said lugs and theother said lug being positioned in front of the lug on the lastmentioned key and a handle suitably mounted in said operating member sothat on the turningof the same the said keys will be pulled flush withthe outer facing of said door.

In testimony whereof I affix signature in the presence of two witnesses.

ALEX. MoCULLOCI-I.

Witnesses:

A. E. BIBBs, J AMES WALKER.

